|Issue|Volume|Title|Main Feature Story|First/Early Appearance Story/Stories|Release Date|
|---|---|---|---|---|---|
|1|24|The Avengers|Ultron Unlimited (Avengers Vol 3 #0 and #19-22)|The Coming Of The Avengers (Avengers Vol 1 #1)|27 Dec 2013|
|2|12|Spider-Man|Happy Birthday (Amazing Spider-Man Vol 2 #57-58 and #500-502).|Spider-Man (Amazing Fantasy #15) The Sinister Six (Amazing Spider-Man Annual #1)|15 Jan 2014|
|3|55|Wolverine|Get Mystique (Wolverine Vol. 3 #62-65)|And Now... The Wolverine (Incredible Hulk #181)|29 Jan 2014|
|4|29|Hawkeye|Hawkeye (Hawkeye Vol.1 #1-4).|Hawkeye, The Marskman (Tales of Suspense #57) The Old Order Changeth (The Avengers Vol.1 #16)|12 Feb 2014|
|5|10|The Hulk|Dogs Of War (The Incredible Hulk volume 2 #12-20)|None|26 Feb 2014|
|6|22|Jean Grey|Here Comes Yesterday (All-New X-Men #1-5)|X-Men Origins: Jean Grey|12 Mar 2014|
|7|49|Power Man|Power Man and Iron Fist #50-53|Luke Cage #1-3|26 Mar 2014|
|8|TBC|Captain America|Captain America #247-255|?|9 Apr 2014|
|9|TBC|Iron Man|The Five Nightmares (Iron Man (Vol. 5) #1-7)|Tales of Suspense #39|23 Apr 2014|
|10|TBC|The X-Men|X-Men: Children of the Atom #1-6|X-Men (Vol. 1) #1|7 May 2014|
|11|TBC|Black Widow|TBC|TBC|21 May 2014|
|12|TBC|The Human Torch (Jim Hammond)|TBC|TBC|4 June 2014|
|13|TBC|Warriors Three|TBC|TBC|18 June 2014|
|14|TBC|Cyclops|TBC|TBC|2 July 2014|
|15|TBC|Captain Marvel|TBC|TBC|16 July 2014|

Question: how many release dates were in april?
Answer: 2